31654768 has 10 divisors (see below), whose sum is σ = 61331144. Its totient is φ = 15827376.

The previous prime is 31654759. The next prime is 31654769. The reversal of 31654768 is 86745613.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31654768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31654769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989196 + ... + 989227.

Almost surely, 2^31654768 is an apocalyptic number.

It is an amenable number.

31654768 is a deficient number, since it is larger than the sum of its proper divisors (29676376).

31654768 is a wasteful number, since it uses less digits than its factorization.

31654768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978431 (or 1978425 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 31654768 is about 5626.2570151034. The cubic root of 31654768 is about 316.3343680711.

The spelling of 31654768 in words is "thirty-one million, six hundred fifty-four thousand, seven hundred sixty-eight".